2.5
2.6
2.66
2.72
Answer is Right!
Answer is Wrong!
The correct answer is C. 2.66.
Specific gravity is the ratio of the density of a substance to the density of a reference substance. The reference substance is usually water, which has a density of 1 gram per cubic centimeter (g/cm3).
Marble is a type of metamorphic rock that is composed of calcium carbonate. The density of marble is about 2.66 g/cm3. This means that marble is 2.66 times denser than water.
The other options are incorrect because they do not represent the correct specific gravity of marble. Option A, 2.50, is too low. Option B, 2.60, is too close to the correct answer. Option D, 2.72, is too high.
In conclusion, the specific gravity of marble is 2.66.